Information and calculation tools by Rachid Asen. Not investment advice or research.

Disclaimer. Information tool. Compiles data published by NSE and BSE and calculations from the exchanges' published ESM and ASM criteria. Prices are end-of-day, not live: updated each evening after trading ends. Ethical business criteria are matched by AI, which can make mistakes; this is a criteria match, not a certification, fatwa, rating or advice. Check the company's filings. Not investment advice, research or a recommendation to buy, sell or hold any security; not SEBI-registered as an Investment Adviser or Research Analyst. Calculated dates are the earliest a security could become eligible; inclusion, stage changes and exit are decided solely by the exchanges. ESM, ASM and GSM shortlisting are surveillance measures and not an adverse action against the company. Data may be delayed or inaccurate; verify with the exchange. Market data © NSE/BSE.

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See further into any NSE or BSE company

Calculation tools for investors and researchers who do their own research.

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Free account, or Pro from ₹500 a month · Approval needed · Not investment advice

Sample Industries LtdNSE · ESMStage 2
₹142.30
Earliest exit (calculated) · 14 Nov
Journal Coming soon
Thesis · Watching debt fall for 3 quarters. Review on 1 Dec.
● Site: moved from Stage 1 to Stage 2 · 3 Oct
Note · 5 Oct: read the Q2 results.
Illustration · a sample filing being read, not a real company
What you get

Everything a free account has, and more

When extra trading rules could end

The earliest exit date under the exchange's published rules, calculated for each stock on search cards and company pages, with the inputs shown. A calculation, not a forecast.

Alerts on every list

An email when a stock on any of your lists enters, changes stage on, or leaves extra trading rules. A free account gets alerts on one list.

A list for every theme you follow

Unlimited lists, picked by you or built from rules, such as semiconductors, life sciences or data centres. Coming soon: an overview of each list showing which stocks are under extra trading rules, which have filed results and what changed this week.

Ethical business criteria · powered by AI

Check every stock against stated criteria for business type, debt and interest, with presets or your own limits. It shows which criteria are met, with the figures. Powered by AI, so it can make mistakes; for study, not a certification or religious ruling.

10 years of history

Financials, daily price candles, and filings you read inside the app instead of on exchange sites.

Investment journal Coming soon

A private journal on every stock you follow: why you hold or watch each one, your thesis history, review reminders, and stage, band and results changes shown next to your notes.

Also: the full ESM, ASM and GSM tables to filter, sort and export, and holdings, bulk and block deals, and insider trades.

Compare

Free account or Pro

FeatureFree accountPro
Your lists (watchlists and screens)3, including 1 screenUnlimited
Overview of each list (coming soon)✓✓ with calculated exit dates
Calculated exit dates–✓
Full ESM, ASM and GSM tables to filter, sort and export–✓
Email alerts on your lists1 listEvery list
Ethical business criteria, powered by AI (business, debt, interest)On every listFilter the full tables
Holdings, deals and insider trades–✓
History2 yearsUp to 10 years¹
FilingsExchange linksIn-app reader
Investment journal (coming soon)3 stocksEvery stock you follow

¹ Where the exchange has filings stored. No account? Guests can search any company and see its surveillance status and the public lists.

Plans

Free, Pro, or for your team

Pro

Tools for researchers

₹500 /month or ₹5,000 /year

Yearly is 2 months free, about ₹417 a month.

  • Unlimited lists, alerts on every list
  • Earliest exit dates calculated from the exchange's rules
  • Full ESM, ASM and GSM tables
  • Holdings, bulk and block deals, insider trades
  • 10 years of history and the in-app filings reader
Request Pro access

Approval and NDA · You pay by email after approval

Free account

₹0

No approval needed.

  • Search and company pages for every NSE and BSE stock
  • 3 lists, one can be a screen
  • Email alerts on 1 list
  • 2 years of history
  • Filings as exchange links
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Teams

Waitlist

Not open yet. Tell us what your team would need.

  • Pro tools for each person, each with their own account
  • One bill for your organisation
  • For your own team's study only
Join the waitlist

Teams is not open yet: joining the waitlist is an email, not a purchase. When it opens, it will be for people in your organisation to use the tools for their own study. It will not include any right to redistribute, resell, show to clients, or feed NSE or BSE data into your own products or reports; that needs a licence from the exchange. SurveillanceLab is not registered with SEBI, and nothing here is investment advice or input for advice to your clients.

Pro: payment by email after approval · Online payment coming soon

Prefer to help instead? Contributor access is open to anyone who supports the site or helps with the data, at Rachid Asen's discretion; a contribution is voluntary support, not a purchase. Contribute ›

How it works

Three steps to Pro access

  1. Request

    Send the request form from your free account.

  2. Sign the NDA

    Email the signed declaration the form gives you.

  3. Get access

    After approval we confirm your plan and payment by email, and Pro turns on.

Questions

Before you ask

Do I pay before approval?

No. Send a request. If it's approved, we confirm your plan and payment by email.

Can I cancel?

Yes, at any time, through Feedback. Access continues to the end of the period you paid for. A monthly plan isn't refunded once active; a yearly plan is refunded in full if you cancel within 7 days of access being turned on. If you aren't approved after paying, or paid twice, the payment is refunded in full.

Does it renew automatically?

No. You're asked before each new period.

Are prices live?

No. Every price is end-of-day: the NSE and BSE close, updated each evening after the market shuts. Nothing on the site is real-time or intraday.

What does a free account include?

Search and company pages for every NSE and BSE stock, 3 lists (one of them can be a screen), email alerts on one list, and 2 years of history.

Do you offer company or team plans?

Not yet. Teams is on a waitlist: email rachidasen@alphasurveillance.in to join it. When it opens, it will be for your own team's study only, without redistributing exchange data or using it in client advice.

Is this investment advice?

No. SurveillanceLab is not registered with SEBI. It is a set of information and calculation tools: exchange data and calculations from the exchanges' published rules, for your own study. You make the calls.

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